The factory downpipe is constructed from two pieces of formed sheet metal welded to an oval pipe. The factory design features a sharp, abrupt transition immediately after the turbine flange, which restricts exhaust flow and impedes performance.
Upgrade your LB7 with the PPE Free-Flow Downpipe and eliminate the rusted, restrictive factory design. Crafted from durable 304 stainless steel, this downpipe features a robust half-inch turbine flange, a CNC-machined lower flange, and smooth, optimized transitions for unobstructed exhaust flow. To further enhance performance, it comes with a woven titanium sleeve that effectively insulates heat, protecting the engine bay.
PART NUMBER: 117000400GTIN: 840171210279
Features
- 304 Stainless steel construction for durability and corrosion resistance
- Lower EGT, better turbo efficiency and response
- TIG welded flanges for leak-free, robust connections
- Smooth transitions and free-flowing design
- Woven titanium heat sleeve
- Lower down pipe gasket
- Compatible with factory or PPE Up-Pipes
VEHICLE FITMENT:
2004 GMC Sierra 3500HD 8 Cyl 6.6 Liter Turbo
2004 GMC Sierra 2500HD 8 Cyl 6.6 Liter Turbo
2004 Chevrolet Silverado 3500HD 8 Cyl 6.6 Liter Turbo
2004 Chevrolet Silverado 2500HD 8 Cyl 6.6 Liter Turbo
2003 GMC Sierra 3500HD 8 Cyl 6.6 Liter Turbo
2003 GMC Sierra 2500HD 8 Cyl 6.6 Liter Turbo
2003 Chevrolet Silverado 3500HD 8 Cyl 6.6 Liter Turbo
2003 Chevrolet Silverado 2500HD 8 Cyl 6.6 Liter Turbo
2002 GMC Sierra 3500HD 8 Cyl 6.6 Liter Turbo
2002 GMC Sierra 2500HD 8 Cyl 6.6 Liter Turbo
2002 Chevrolet Silverado 3500HD 8 Cyl 6.6 Liter Turbo
2002 Chevrolet Silverado 2500HD 8 Cyl 6.6 Liter Turbo
2001 GMC Sierra 3500HD 8 Cyl 6.6 Liter Turbo
2001 GMC Sierra 2500HD 8 Cyl 6.6 Liter Turbo
2001 Chevrolet Silverado 3500HD 8 Cyl 6.6 Liter Turbo
2001 Chevrolet Silverado 2500HD 8 Cyl 6.6 Liter Turbo